摘要
研究区的天宝山组和苏雄组、开建桥组酸性、中酸性火山岩、火山碎屑岩同属下震旦系。它们及同期形成的花岗岩形成于后造山构造环境中，并非与裂谷活动有关。它们皆为S型，其源岩为太古界。
The Tianbaoshan Formation belongs to the Lower Sinian system, like the Suxiong and KaiJianqiao formations. All of them are composed of acid, intermediate-acid volcanic and volcan-oclastic rocks. They are contemporary plutonic equivalents (i. e., granite) formed in post-orogen-ics, and have no bearing on rift activity. Their source is the Archean Group.
出处
《矿物学报》
CAS
CSCD
北大核心
1998年第4期401-410,共10页
Acta Mineralogica Sinica
基金
北京中关村测试基金
国家攀登计划A"与寻找超大型矿床有关的基础研究"中扬子地块西南线专题
关键词
天宝山组
下震旦系
源岩
同位素
火山岩
Tianbaoshan Formation
Lower Sinian
post-orogenics
source
Archean Group
isotope
